Appa, Gautam, Argyris, N. and Williams, H. Paul
(2006)
A methodology for cross-evaluation in DEA.
Operational Research working papers,
LSEOR 06.81.
Operational Research Group, Department of Management, London School of Economics and Political Science, London, UK.
ISBN 0753017032

Appa, Gautam and Williams, H. Paul
(2002)
A formula for the solution of DEA models.
Operational Research working papers,
LSEOR 02.49.
Department of Operational Research, London School of Economics and Political Science, London, UK.